package quiz;

import java.io.IOException;

import javax.servlet.RequestDispatcher;
import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

/**
 * Servlet implementation class ViewTagServlet
 */
@WebServlet("/ViewTag")
public class ViewTagServlet extends HttpServlet {
	private static final long serialVersionUID = 1L;
       
    /**
     * @see HttpServlet#HttpServlet()
     */
    public ViewTagServlet() {
        super();
        // TODO Auto-generated constructor stub
    }

	/**
	 * @see HttpServlet#doGet(HttpServletRequest request, HttpServletResponse response)
	 */
	protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
		DataBase db = (DataBase) request.getServletContext().getAttribute("db");
		Account currentAccount = (Account) request.getSession().getAttribute("account");
		int acctID = (currentAccount == null) ? -1 : currentAccount.getID();
		String tag = request.getParameter("tag");
		
		if (tag == null) {
			response.sendRedirect("ShowQuizzes");
		}
		else {
			request.setAttribute("quizzes", db.getQuizzesByTag(acctID, tag));
			request.setAttribute("tag", tag);
			
			RequestDispatcher dpatch = request.getRequestDispatcher("view-tag.jsp");
			dpatch.forward(request, response);
		}
	}

	/**
	 * @see HttpServlet#doPost(HttpServletRequest request, HttpServletResponse response)
	 */
	protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
		// TODO Auto-generated method stub
	}

}
